Someone picked up my CIS and it flooded with ink. The cyan leaked into the yellow sponge. I tried to pull as much ink out of the sponge as I could using the syringe, but there is still a good amount of brown color in the sponge. It's hard to tell with the darker colors, but I think the yellow is the only sponge that got contaminated, based on how printing a purge sheet looked.

Is there a way to clean the sponge? If not, is there a way to get a replacement HP 920 cartridge?